From ce54c9cceef68b78be7cc429988df26add904d9b Mon Sep 17 00:00:00 2001 From: kzc Date: Fri, 3 Mar 2017 13:39:54 -0500 Subject: [PATCH] disallow collapse_vars constant replacement in for-in statements (#1543) --- lib/compress.js | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/lib/compress.js b/lib/compress.js index 2cd79128..35459006 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -525,11 +525,9 @@ merge(Compressor.prototype, { // Constant single use vars can be replaced in any scope. if (var_decl.value.is_constant()) { var ctt = new TreeTransformer(function(node) { - if (node === ref) { - var parent = ctt.parent(); - if (!(parent instanceof AST_ForIn && parent.init === node)) { - return replace_var(node, parent, true); - } + if (node === ref + && !ctt.find_parent(AST_ForIn)) { + return replace_var(node, ctt.parent(), true); } }); stat.transform(ctt); -- 2.34.1